Car-brake



(No Model.) V

-P. STREHLAN.

GAR BRAKE.

No. 264,582. Patented Sept.'19,'1882 gnfl PW w G.\| O B|\ 2+ 7. a E A, or C N l r 0 IF! e U. a I. u a

' UNITED STATES PATENT OFFICE.

FREDERICK W. STREHLAN, OF BALTIMORE, MARYLAND.

CAR-BRAKE.

SPECIFIdATION forming part of Letters Patent No. 264,582, datedSeptember 19, 1882. V Application filed July 5, 1882. (No model.) v

To all whom "it may concern:

Be it known that I, FREDERIOK W. STREH LAN, of Baltimore city, State ofMaryland,

have invented certain new and useful Improvements in Steam or'AirBrakes; and I hereby declare the same to. be fully, clearly, and exactlydescribed as follows, reference being had to the accompanying drawings,in which- Figure 1 is an elevation of a car embodying my invention, thepart of the figure to the right of the line ma; being in centralvertical sectional view. Fig. 2 is a plan of a detail of the device, andFig. 3 is a perspective view of one of the yokes for supporting thepush-bar and its immediate attachments.

Myinvention relates in general to that class of brakes for railway-carsoperated by means of steam'from the locomotive boiler, 'or by compressedair led from a reservoir which is placed under the tender or thefoot-board of the engine, and which is kept stored with compressed airby means of a donkey pump or a pump driven by means ot an eccentric onone of the axles.

More specifically, my invention relates to f thatclass of brakes inwhich a push-bar permanently located under each car is forced backwardto apply the shoes to the wheels.

The invention will first be described, and then pointed out in theclaims. .In the drawings, A is the platform of the car-body, and a, aare the transverse trussbeams, which are connected by a pair of rods,

B B, (see also Fig. 3,) that sustain a U-shapedsupport, b. Similar rods,B,-extend from the bolsters toward the ends of the car, and on them aremounted similar supports, b.

The push-bar is made in two pieces, 0 G, bolted and lapped as shown at l1, whereby it may be taken apart and slid out endwise when repairs arenecessary. Keys'J. secure the bar. to the supports, which latter areprovided with rollers j,'so as to slide freelyupon the rods B B.

To the brake-beams d are pivo'tedlevers D, from which extend rods E tothe opposite beams, e.

Pull-rods F F! are attached to the upper a chain, G, leads over apulley, g, and is attached to the rod C,-and a second chain, H, leads tothe shaft h of the hand brake windlass.

The form of brake mechanism shown as applied to the trucks is preferred;but of course I may use in connection with the push-bar any oftheconventional and well-known forms, such as the Stevens or Hodge.

On the ends of the push-bar C G- are butfers c.

I have not shown the couplings or couplerbuEers of the car, as they havenothing to do with my invention. course, that they project far enough toprevent the rods 0 0 of the several cars from coming in contact whenbacking.

It will be understood, of

I have also not shown the cylinder, piston,

and push-bar on the tender or engine, as that part of the device is oldand well known.

In operation, Supposing the car to be moving in the direction of thearrow and the push -bar to beforoed in the opposite direction, thechai'n G will be drawn around the pulley g, the upper ends of the leversD will move forward, and the shoes will be pressed against theperipheries of the wheels. Should the car he turned end for end, thesame effect would be produced by the direct ,pull of the chain as therod is forced backu In case of accident to the power-brake the handbrakemay be used by means of the chain IT.

The U shaped supports subserve an important end in sustaining the red O0 against lateral thrust when the brakes are applied on a curved track.

The entire mechanism may be applied at a small cost to carsv as alreadyconstructed, ample space being affordedbetweeu the bolsteer andswingbeam for the rods F F, and between the'lower cross-timber and theswingbeam for the rods 0 G and bars E.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In combination with the push-bar, the

U-shaped supports 1) b, sliding upon rods sepulley to the push bar,whereby movement of cured beneath the ear-body, and rods and thelatterineitherdirection applies the brakes, 1o chains connecting the brakemechanism of the as set forth.

trucks with the push-bar, substantially as de- 5 scribed FREDERICK W.STREHLAN.

2. In combination with the sliding supports Witnesses: I) b, thetwo-part rod 0 C, lapped and bolted GEO. H. PISTEL,

at Z l, the rods F F, and chain G, led over a WILLIAM J. DEMUTII.

